| APA | Smart Define. (-0001). European Immunization Week thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/european_immunization_week/thesaurus/broader |
| Chicago | Smart Define. -0001. "European Immunization Week thesaurus" https://smartdefine.org/european_immunization_week/thesaurus/broader (accessed September 25, 2026). |
| Harvard | Smart Define -0001, European Immunization Week thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/european_immunization_week/thesaurus/broader>. |
| MLA | Smart Define. "European Immunization Week thesaurus" 30 November -0001. Web. 25 September 2026. <https://smartdefine.org/european_immunization_week/thesaurus/broader> |